XRISM
Galaxy swarms are composed of gas that contains Big Bang “leftovers”. But why doesn’t it cool? The secret is in the “Sloshing”.
Galaxies are kept in clusters due to the gravitational attraction of dark matter. Within these swarms, the gas (consisting of hydrogen and helium that have left the Big Bang) is overheated to tens of millions of degrees.
Now, through the Xism/Resolve Mission, it was possible to measure this hot gas. The conclusion, published in February in a magazine Naturerevealed that this gas is moving, “swinging” forward and backwards in response to COLLISIONS AND FUSIONS anterior with other swarms.
According to, this investigation has unlocked a great cosmic mystery that gives new information about the evolution of the largest structures in the universe.
Theoretically, the gas should, however, lose energy and cool (the so -called radioactive cooling). However, on the contrary, this gas Stay hot. Why?
Hot gas in the center in the agglomerated Centaurus flows toward the earth at speeds from 130 to 310 km per second. This allowed to perceive the resolve, with an energy resolution about 30 times higher than the conventional instruments.
This oscillatory movement, the “sloshing”, Provided precisely by the mergers and collisions that occurred in the past, it shakes hot gas around, which prevents it from cooling, now believes scientists.
Centaurus cluster suffered multiple interactions with smaller clusters, and hot gas at its nucleus still oscillates due to these past collisions.
Ear research can also help us understand the formation and evolution of other celestial bodies in the universe.
